253Ma vs. SS310 Heat Resistance Steel plate
Jul 31, 2025
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When operating temperatures exceed 1000°C, choosing the right stainless steel plate is critical to ensuring durability, oxidation resistance, and cost-efficiency. Two commonly used high-temperature stainless steels are 253MA (UNS S30815) and SS310 (310/310S, UNS S31008). But which one is better for your application?
This article provides a technical and practical comparison to help engineers, project managers, and procurement specialists make an informed decision.
253Ma vs SS310 Heat Resistance Steel plate
Global Equivalents
| Grade | UNS | EN (EU) | JIS (Japan) | GB (China) |
|---|---|---|---|---|
| 253MA | S30815 | 1.4835 | – | – |
| SS310 | S31000 | 1.4845 (X15CrNiSi25-20) | SUS 310 | 20Cr25Ni20Si2 |
Chemical Composition
| Element | 253MA | SS310 |
|---|---|---|
| Chromium (Cr) | 20–22% | 24–26% |
| Nickel (Ni) | 10–12% | 19–22% |
| Silicon (Si) | 1.4–2.0% (boosts oxidation) | ≤1.5% |
| Cerium (Ce) | 0.03–0.08% (cyclic heat) | – |
| PREN* | ~28 | ~26 |
*Pitting Resistance Equivalent Number (PREN) = %Cr + 3.3(%Mo) + 16(%N)*
Mechanical Properties
| Property | 253MA | SS310 |
|---|---|---|
| Tensile Strength | 600–850 MPa | 515–760 MPa |
| Yield Strength | 310–450 MPa | 205–310 MPa |
| Max Service Temp | 1150°C (intermittent) | 1100°C (continuous) |
| Key Strength | Cyclic thermal stability | Steady heat resistance |
Fabrication Tips
Welding: Use ER309/ER310 fillers for SS310; 253MA requires matching filler (e.g., ER308).
Machining: 253MA's cerium increases abrasiveness – use carbide tools.
Heat Treatment: Solution anneal at 1050–1150°C (253MA) or 1030–1180°C (SS310).
Which is better for high-temperature resistance, 253MA or SS310?
253MA offers slightly better oxidation resistance and creep strength at temperatures up to 1150°C, while 310 excels in thermal cycling environments due to higher Ni content.
Can I replace SS310 with 253MA in my application?
In many cases, yes-especially if you're working in dry, oxidizing environments and want to lower material costs.
What is the price difference between 253MA and SS310 plate?
253MA is generally more cost-effective, offering high-temperature performance close to 310 but with lower nickel content. Contact us for the latest per-kg price based on your required size and quantity.
GNEE's Supply Advantage
✔️ Thickness Range: 3mm–50mm
✔️ Width: Up to 2000mm
✔️ Length: Up to 6000mm (custom cuts supported)
✔️ Surface Finish: No.1 (hot rolled), 2B (cold rolled), pickled
✔️ Certifications: ASTM A240, EN 10028, with EN 10204 3.1 Mill Test Certificates
✔️ Heat Resistance Test Reports & Traceability
✔️ Fast Delivery with global shipping options (FOB/CIF/CNF)
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